Ammonia gas is used to make liquid nitrogen, ammonia water, nitric acid, ammonium salt and amine. It can be directly synthesized by nitrogen and hydrogen, and can burn the mucosa of skin, eyes and respiratory organs. Excessive inhalation can cause lung swelling and even death.
The irritation of ammonia is a reliable alarm signal of harmful concentration. However, due to olfactory fatigue, it is difficult to detect low concentration of ammonia after long-term contact. Mild ammonia inhalation poisoning is characterized by rhinitis, pharyngitis, sore throat and hoarseness.
Extended data
Common toxic gases are carbon monoxide, sulfur dioxide, chlorine, phosgene, diphosgene, hydrogen cyanide, mustard gas, Lewis gas, vexcor (VX), sarin (BZ), tabun, soman and so on.
Toxic gases are divided into nerve paralysis gas, respiratory paralysis gas and muscle paralysis gas according to their harm to human body. According to the principle of harm to human body, irritating gas and asphyxiating gas can be considered.
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People's Daily Online-Suspected ammonia leakage in fertilizer plant, villagers hold discussion.